. The Canadian field-naturalist. . Figure 4. Comparative growth rates of Lake Sturgeon in lakes Huron, Nipigon, and Winnebago and the St. Lawrence, Nelson and La Grande rivers. The curves were calculated from data presented by Harkness and Dymond (1961),' Priegel and Wirth (1971) and Magnin (1977).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ottawa Field-Naturalists' Club. Ottawa, Ottawa Field-Naturalists' Club

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